80989191396 has 27 divisors (see below), whose sum is σ = 204726994563. Its totient is φ = 26995827960.

The previous prime is 80989191383. The next prime is 80989191401. The reversal of 80989191396 is 69319198908.

The square root of 80989191396 is 284586.

It is a perfect power (a square), and thus also a powerful number.

80989191396 is a `hidden beast` number, since 80 + 9 + 89 + 1 + 91 + 396 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1683801 + ... + 1731231.

Almost surely, 2^80989191396 is an apocalyptic number.

80989191396 is the 284586-th square number.

It is an amenable number.

80989191396 is an abundant number, since it is smaller than the sum of its proper divisors (123737803167).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80989191396 is an frugal number, since it uses more digits than its factorization.

80989191396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94872 (or 47436 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 63.

The spelling of 80989191396 in words is "eighty billion, nine hundred eighty-nine million, one hundred ninety-one thousand, three hundred ninety-six".